Description

Sodium Hydrogen 8-Amino-3-Hydroxynaphthalene-1,5-Disulphonate is a high-purity, water-soluble naphthalene derivative essential for advanced chemical synthesis and colorant production. This compound serves as a critical key intermediate for manufacturing azo dyes, pigments, and specialized functional chemicals. It is primarily required by industries focused on textile dyes, specialty pigments, and high-value fine chemical manufacturing where precise molecular structure and consistent quality are paramount.

Application

• Primary Intermediate for Azo Dyes & Pigments: A key building block in the synthesis of high-performance, water-soluble azo dyes used in textiles, inks, and coatings.
• Specialty Chemical Synthesis: Utilized in the production of complex organic molecules for research and industrial applications.
• Functional Dye Manufacturing: Serves as a precursor for dyes with specific optical or electronic properties.
• Laboratory Reagent: Used as a standardized reagent in analytical chemistry and research laboratories.
• Photographic Chemicals: Potential application in the formulation of certain photographic and imaging chemicals.
• Biochemical Research: May be employed as a substrate or intermediate in specific biochemical studies.

Basic Information

Product Name	Sodium Hydrogen 8-Amino-3-Hydroxynaphthalene-1,5-Disulphonate
CAS No.	93776-87-5
Molecular Formula	C10H8NNaO7S2
Molecular Weight	349.29 g/mol
Synonyms	8-Amino-3-hydroxynaphthalene-1,5-disulfonic acid monosodium salt; 1,5-Disulfo-8-amino-3-naphthol monosodium salt; Sodium 8-amino-3-hydroxy-1,5-naphthalenedisulfonate; 8-Amino-3-naphthol-1,5-disulfonic acid sodium salt; H-acid monosodium salt (related derivative); Azo dye intermediate H-acid derivative; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our Sodium Hydrogen 8-Amino-3-Hydroxynaphthalene-1,5-Disulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and consistency. Certificates of Analysis (COA) detailing assay, impurity profiles, and physical characteristics are provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect quality and handling properties.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility (in Water)	Clear, complete solution
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.